Subject distribution (approximate).
Forest mensuration and measurement is the largest technical block, about 14 to 16 questions: tree volume, calipers, breast height on slopes, Hoppus rule, relaskop, hypsometers, form factor types, form class tables, diameter-girth ratio, single-tree counting at forks, standard timber bole, Pressler’s formula, the origin of the word mensuration and saw kerf.
Silviculture and forest management is about 12 to 14 questions: compensatory afforestation, cleaning, stick thinning, girdling, rotations (economic, technical, silvicultural, physical), Taungya, silvicultural systems, working plans and schemes, tending, heliotropic branching for avenue planting, trench layering, tissue culture explants and tree improvement terms (plus tree, elite tree).
Taxonomy, botany and plant anatomy is about 20 to 24 questions: families (Ficus, Toona, Rhynchostylis, Dipterocarpaceae), Diplazium as a pteridophyte, winged seeds, cyathium, stamen arrangement, vessels absent in Trochodendraceae, tracheids, sclereids, collenchyma, early and late wood, heartwood, tyloses, vivipary, red-flowered trees and Pinus names. This is the biggest overall block.
Wood science and forest products is about 8 to 10 questions: seasoning, warping, honeycombing and other shrinkage defects, resin pines, katha from Acacia catechu, tannin, bidi leaves, sports goods timber, broom grass and its botanical name.
Ecology, biodiversity and conservation law is about 18 to 22 questions: Shelford’s law of tolerance, endemism, synecology, homeostasis, ecesis, keystone species, carbon sequestration, IUCN categories, CITES, Kyoto and Cartagena Protocols, eco-sensitive zones and the Wildlife Act, invasive alien species, Project Tiger, Schedules of the Wildlife Act, ISFR 2023 and forest types.
Assam and North-East specifics is about 14 to 18 questions: Golden Mahseer as a State fish, Dibru-Saikhowa biosphere reserve, Hollongapar Gibbon sanctuary, Biodiversity Heritage Site (Haflong), Kaji Nemu as State fruit, Antheraea assamensis (muga silk), the Rain Forest Research Institute in Jorhat, hollock and dhekia, sangai, golden langur, pygmy hog and diclofenac on vultures, plus Chitra indica.
Soil, pests and others is about 8 to 10 questions: horizons, soil structure, humus types, nitrification bacteria, Sal heartwood borer and fungus, GIS raster data, DNA markers and ethnobotany books.
Recurring themes.
- Measurement terms and formulas for trees and logs (form factor, Hoppus, Pressler, hypsometers) come up again and again.
- Plant families and scientific names are a constant pattern, so pairing local name with botanical name with family is high-yield.
- Rotations and thinning types recur in silviculture.
- Assam fauna, flora and protected areas weave through almost every section.
Difficulty pattern. Easy to moderate overall. Quick marks include Shelford, Kyoto and UNFCCC, Project Tiger, Cartagena Protocol, Ficus as Moraceae and CITES. The harder items need exact figures or niche facts, such as the standard timber bole diameter, the ISFR 2023 volume leader, Seguin’s tannin year, the Schedule listing of Nepenthes khasiana, the Hoppus pi value and the sports goods timber.
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